Burner for torches and the like



' H. J. ANDERSON BURNER FOR TORCHES AND THE LIKE Filed May 8 1923 2 Sheets-Sheet 1 7% ZINVENTOR.

52 W fig ATTORNEYS.

Nov. '11, 1924. I 1,515,136

H. J, ANDERSON BURNER FOR TORCHES AND THE LIKE Filed May a 1923 2 Sheets-Sheet 2 X ZNVENTOR. I

I m w fi ATTORNEY.

Patented Nov. 11, 1924.,

. @NNTED STATES HARE-Y J. ANDERSON, OF PITTSBURGH, PENNSYLVANIA.

BURNER FOR TORCHES AND THE LIKE.

Application filed May 8,

: all whom it may concern:

Be it known that I, HARRY J. Anonason, a citizen of the United States, and residing in the city of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented or discovered the new, useful, ant

Improved Burners for Torches and the like,

of which the following is a specification.

Myv invention consists in a new, and improved. burner for bench and hand torches,

plumbers torches and furnaces, rivet heating furnaces and the like.

The object which I have in view is a new and improved burner for pumpless torches,

heaters, furnaces and the like, which will work with gases of low compressibility; -which willproduce a steady flame without pulsations, and which will produce very high temperatures suitable for brazing and such work.

Generally speaking my improved burner is characterized by the disposition of the fuel supply tube relative to the nozzle so that the gaseous fuel is preheated to a hitherto unknown degree before being discharged into the nozzle. For this purpose I lead the fuel supply tube-forwardly along the nozzle, then crossing over or under the same and then rearwardly along and to the rear of the rear of the nozzle. I

Other novel features of construction and arrangement of parts will appear from th following description.

In the accompanying drawings, which are however merely intended to illustrate practical embodiments of the principles of my invention without limiting the scope thereof to the construction shown, Fig. 1 is a broken side elevation of a bowl torch in which my invention is embodied; Fig. 2 is a rear elevation of the same with the bowl broken away; Fig. 3 is a plan view of the burner; Fig. .4 is a side elevation showing my invention embodied in a hand torch; Fig. 5 i a rear elevation of the same; Fig. 6 is a top plan view of the same, and Fig. 7 is a broken diametric section of the post and the top fitting of the same.

The following is a description of the drawings, reference being first had to Figs. 1, 2 and 3.

A represents a bowl or reservoir for the nozzle, so that the fuel is admitted to the- Serial No. 637,412.

gases in liquid form. B is the post or stem which supports the burner proper, and

which may be mounted on .the bowl, and

and is connected at its upper end with a horizontal passage 2 which extends through the horizontal portion or head of an inverted T-shape extension C of the post B near the upper end of the latter. This extension, C may be brazed to the post B. 3 is a vertical passage in the vertical leg of the extension 0. Between the passages l and 3 the passage 2 is provided with a valve seat 4; adapted to be closed by the needle valve D, mounted onthe extension G, and thus controlling the supply of fuel to the passage 3.

E is the fuel tube having its inlet end detachably connected to the stem of the extension C, as by the screw coupler 5. The other or discharge end of the tube E is provided with the detachable, perforated burner tip F, thereby supplying fuel to the burner.

The outer or discharge end of the nozzle G is preferably taperedor contracted, as at 6, to better project the flame, and said noz zle is also provided with air ports, 7.

' The rear end'of the nozzle G is provided with the spider or head 8 provided with an axial orifice or port 9 through which the tip F extends. Thesaidport is preferably threaded for a purpose to be described.

The nozzle G is supported in a horizontal position, preferably by the bent tube The tube E is bent to extend forwardly along the wall of the nozzle G, then across the tapered or reduced discharge end of the nozzle, either over or under the same, and then rearwardly along the wall of the nozzle to the rear end of the latter where said tube is bent inwardly and then forwardly, axially of the nozzle so that the tip F will be positioned at the orifice 9. and removably support the nozzle, the same may be provided on either side near its rear end with the hooked projections 10, which engage the tube E from above and at its top front with a projection 11 which en To conveniently gages from above the transverse portion of the tube E. I

It is also evident that the gas traveling through the tube E will be heated by its show my burner applied to a torch, the post B is provided with a cylindrical hand g "asp l2 and the lower end of the passage 1 may be connected by a valve coupler H 'with a tube 13 which connects to abottle or other reservoir for gas.

In this case I have shown mounted on the upper end of the post B a fitting I which may be connected by the screw coupler J with an interposed asbestos washer 14-, thus preventing overheating the handle.

The discharge end of the tube E is connected by a screw coupler 15 to the outer end of a radial passage 16 in the fitting 1, which passage connects at the axis of the fitting with a second radial passage 17 to whose outer end is connected the burner tip F by the nipple 18. The fitting I is also provided with an axial passage 19 wh ch extends down from the top of the fitting to the passage 16. The upper end of said passage 19 is normally closed by the nipple 20 and the screw plug 21, but when 1t isdes1red to project the burner flame in alinement with the post B, the plug 21 is removed and the tip F substituted. To enable the pro-per positioning and mounting of the nozzle G, in such case I prefer to provide the upper r end of the nipple 20 with exterior threadsupon which is screwed the threaded orifice 9 in the butt end of the nozzle.

When the burner is directed axially of the stem, as indicated in dot-ted lines in Fig. 4:, the tube E is bent to pass upwardly along the nozzle at one side, then cross over the same and then downwardly along the other side of the nozzle to the fitting I.

K is the frangible pressure disc device to provide for automatic relief for the passage 1 from dangerously high pressures.

It is evident from the foregoing that the pressure of the gas in the supply tube E will be magnified by the heat radiating from the nozzle so that the gas will be discharged at increased velocity into the rear end of the nozzle tube. This increased pressure will assist in drawing fuel up through the stem or post B. By passing the liquid or partially liquid fuel through the preheating portion of the tube E, before it enters the nozzle, all the liquid elements are completely gasified, and a greatly magnified heating value is obtained, and the burner flame is much more steady and intense. Thus the entire liquid contents of the bowl or reservoir, when wet gases are used as the fuel are gasitied and consumed.

By loosening the coupler 5, the tube and nozzle may be dismounted, thus increasing 1 place in the saddle,

said passage comn'n-nricates with the convenience of the burner and facilitating repairs. \Vhere the nozzle is mounted in alinement with the post 15, the nozzle may be readily unscrewed from the nipple 20.

Although. for the sake of clcarncss in illustrating the principles of my invention I have described in detail the Gll'lbOClllllEl'ltS thereof shown in the drawings, I do not wish to limit myself thereby, but claim broadly 1. In aburner for the purposes described, the combination of a gas tube connected at one end to asupply reservoir, a burner tip connected with the other end of the tube, and the intcrn'icdiate portion of the tube being bent to form a saddle comprising a pair of parallel legs connected together by a loop,

and a nozzle removably mounted in said saddle, the burner tip being positioned at the intake end of the nozzle.

2. In a burner for the purposes described, the combination'of a gas tube connected at one end to a supply reservoir, a burner tip connected with the other end of the tube, and the intermediate portion of the tube being bent to form a saddle comprising a. pair of parallel legs connected together by a loop, a nozzle removably mounted in said saddle, and projections extending from said nozzle and resting upon the intern'iediateportion of said tube to support the nozzle in placc,the burner tip being positioned at the intake end of the nozzle.

3. In a burner for the purposes described, the combination of a gas tube connected at one end to a supply reservoir, :1 burner tip connected with the other end of the tube, and the intermediate portion of the tube being bent to form a saddle comprising a pair of parallel legs connected by an upwardly extending loop, a nozzle interposed between said legs and having its outlet end extending within said loop, and projections on said nozzle which engage said legs and loop from above to support the nozzle. removably in the burner tip being presented at the inlet end of the nozzle.

4. In a burner of the character described, the combination of a supporting post, the lower portion of said post being provided with a gas passage connected at one end with a supply reservoir while the other end of a port in said post, a second gas passage in the upper portion of said post and having its ends connected to ports in said post, a gas tube con necting said first named port with one of said second named ports, a

burner tip connected to the other of said second named ports, and a nozzle having its intake end presented to said burner tip, the intermediate portion of the tube being bent so as to extend in for preheat-ing the gas before it is delivered to the nozzle.

5. In a burner of the character described,

intimate relation to said nozzle the combination of a supporting post, the lower portion of said post being provided with a gas passage connected at one end with a supply reservoir while the other end of said passage communicates with a" port in said post, a second gas passage in-the upper portion of said post and having its endsconnected to ports in said post, a gas tube connecting said first named port with one of said second named ports, a burner tip connected to the other of said second named ports, and a nozzle having its intake end presented to said burner tip, the intermediate portion of the tube being bent to form a saddle in which the nozzle is removably supported.

6. In a burner of the character described, the combination of a two-part supporting post, the lower post being provided with a passage connected at its lower end to a supply reservoir while the upper post is detachably mounted on the lower post and is provided with a. gas passage, a burner tip connected to one end of the passage in the upper post, a nozzle having its intake end presented to said burner tip, and a gas tube connecting the other end of the passage in the upper post with the upper end of the passage in the lower post, the tube being bent to extend in intimate relation with the nozzle for preheating the gas before it is delivered to the burner tip.

7. In a burner of the character described, the combination of a two-part supporting post, the lower post being provided with a passage connected at its lower end to a supply reservoir while the upper post is detachably mounted on the lower post and is provided with a gas passage, a burner tip connected to one end of the passage in the upper post, a nozzle having its intake end presented to said burner tip, a gas tube connecting the other end of the passage in the upper post with the upper end of the passage in the lower post, the tube being bent to extend in intimate relation with the nozzle for preheating the gas before it is delivered to the burner tip, and a heat insulation interposed between said upper and lower post.

8. In a burner of the character described, the combination of a two-part supporting post, the lower post being provided with a passage connected at its lower end to a supply reservoir whilethe upper post is detachably mounted on the lower post and is provided with a gas passage, a burner tip connected to one end of the passage in the upper post, a nozzle having its intake end presented to said burner tip, and a gas tube connecting the other end of the passage in the upper post with the upper end of the passage in the lower post, said tube being bent to form a saddle in which the nozzle is removably supported.

9. In a burnerof the character described, the combination of a two-part supporting post, the lower postbeing provided with a passage connected at its lower end to a supply reservoir while the upper post is de-- tachably mounted on the lower-post and is provided with a gas passage, a burner tip connected to one end of the passage in the upper post, a nozzle having its intake end presented to said burner tip, a gas tube connecting the other end of the passage in the upper post with the upper end of the )assage in the lower post, said tube being bent to form a saddle in which the nozzle is removably supported, and a heat insulation interposed between the upper and lower post.

10. In a burner of the character described, the combination of a two-part supporting post, the lower post having a gas passage connected at its lower end to a gas supply reservoir, an upper post detachably mounted on the lower post and provided with a gas passage, a burner tip connected to one end of the second named passage, a tube connecting the other end of the second named passage with the upper end of the first named passage, and a nozzle having its intake end presented to said burner tip.

11 In a burner of the character described, the combination of a two-part supporting post, the lower post having a gaspassage connected at its lower end to a gas supply reservoir, an upper post detachably mounted on the lower post and provided with a gas passage, a burner tip connected to one end of the secondnamed passage, the tube connecting the other end of the second named passage with the upper end of the first named passage, a nozzle having its intake end presented to said burner tip, and a heat insulation interposed between the up per and lower post.

12. In a burner of the character described, the combination of a two-part supporting post, the lower post having a gaspassage connected at its lower end to a supply reservoir, the upper post being detachably mounted on the lower post and being provided with a branched passage, one branch oi the last named passage extending axially to the upper end of the upper post while the other branches of the passage extend radially of the post, the axial passage and one of the radial passages being provided with means for the attachment of a burner tip, and a gas tube connecting the other radial passage to the upper end of the passage in the lower post.

13. In a burner of the character described, the combination of a two-part supporting post, the lower post having a gaspassage connected at its lower end to a supply reservoir, the upper post being detachlemm axial passage and one ef the radial passages being pl'eyided with means for the attachment of burner tip, and a gas tube onmeeting the other redial passage to the uppe d f the passage in'the lower pest.

Sigeed at Pittsburgh Pa., this Tthday of May, 1923.

IIARRY J. ANDERSON. 

